Which phase change is an exothermic process?

2 ⤊

Which phase change is an exothermic process?

please help

2007-01-21 14:15:34 · 4 answers · asked by rabbityfeet 1 in Science & Mathematics ➔ Chemistry

4 answers

gas --> liquid --> solid are exothermic.

to move from solid --> liquid --> gas these phase transitions are endothermic in that they require an input of energy

2007-01-21 14:19:12 · answer #1 · answered by Yobbomate 2 · 1⤊ 0⤋

Freezing and condensation are both exothermic.

2007-01-21 14:27:26 · answer #2 · answered by Anonymous · 0⤊ 0⤋

(g) to (s),
(g) to (l),
(l) to (s),

are exothermic transitions.
transitions opposite to all given above are endothermic.

2007-01-21 14:30:37 · answer #3 · answered by krissh 3 · 0⤊ 0⤋

liquid to solid , gas to liquid, gas to solid

2007-01-21 14:21:45 · answer #4 · answered by gebobs 6 · 1⤊ 0⤋